Essays about: "downstream migration of fish"

Showing result 1 - 5 of 18 essays containing the words downstream migration of fish.

1. 1. The climate impact of fishways : A life cycle assessment of Blyberg’s and Spjutmo’s up- and downstream fishways

   University essay from Linköpings universitet/Industriell miljöteknik

   Author : Ellen Lundin; Lovisa Liljenberg; [2023]
   Keywords : LCA; life cycle analysis; life cycle assessment; fishways; fish; fish migration; climate impact; technical fishways; co2 equivalents; co2 eq; hydro power; HPP; Sweden; construction; concrete; reinforcement steel;

   Abstract : The Swedish national plan for reapproval of hydropower describes that hydropower plants (HPPs) are required to be reassessed to ensure that modern environmental conditions are set for the permits. Since dams and HPPs create barriers for migrating fish and consequently disfavor biological diversity, one consequence of the national plan is that fishways are being constructed. READ MORE

3. 2. Fish Friendly Turbines forDownstream Migration : Literature review and case studies

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Signe Rosenblad; [2023]
   Keywords : Downstream passage solutions; downstream migration of fish; small-scale hydropower; eel; trout; Nedströms passagelösningar; nedströms vandring av fisk; småskalig vattenkraft; ål; öring;

   Abstract : As the energy consumption is constantly increasing, the demand of renewable energy is increasing too. Thirtythree percent of the renewable energy production in Europe constitutes of hydropower. Hydropower is animportant energy source as it has stabilizing and storing functions, but it heavily affects biodiversity. READ MORE

4. 3. Evaluating an increased spill regime as a management tool to improve downstream passage of salmon smolt

   University essay from Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

   Author : Mattias Hansson; [2022]
   Keywords : hydraulic modeling; hydroacoustic telemetry; time to event analysis; hydraulisk modellering; överlevnadsanalys; hydroakustisk telemetri;

   Abstract : The anadromous Atlantic salmon (Salmo salar) is dependent on river connectivity to reach spawning and rearing habitats in rivers. Most rivers are today fragmented by artificial barriers such as hydroelectric powerplants (HEP) which impede this migratory movement. READ MORE

5. 4. Downstream migration and survival of Atlantic salmon (Salmo salar L.) kelts and fallbacks when passing a hydropower plant

   University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

   Author : Frans Byström; [2020]
   Keywords : migration; kelt; iteroparous; anthropogenic obstacle; survival; turbine passage;

   Abstract : Repeat spawners of Atlantic salmon may be of great importance for population stability, the return spawners can significantly contribute to recruitment of juveniles. To have a significant proportion of repeat spawners in the population, it is necessary that salmons can successfully migrate back to the sea after spawning upriver. READ MORE

6. 5. Highway To Hell: Can a bubble barrier guide descending salmonid kelt to safety?

   University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Author : Jonathan Nordin; [2020]
   Keywords : bubble barrier; non-physical barrier; fish passage; fish migration; hydropower; bubbelbarriär; icke-fysisk fiskledare; lax; öring; fiskvandring; vattenkraft;

   Abstract : Loss of connectivity in riverine systems due to construction of hydropower dams has resulted in a worldwide decline of anadromous salmonid species such as Atlantic salmon (Salmo salar L.) and sea trout (Salmo trutta L.). The future of these species depend on the presence of available spawning habitat in freshwater river systems. READ MORE